位置依赖行为和约翰逊-库克构成模型参数用于牛大腿骨
Devara Venkata Krishna1, Mamilla Ravi Sankar1, Thopireddy Nagendra Reddy2
1Department of Mechanical Engineering, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh, India.
概括
骨的机械性能因不均的结构而有所不同. 一个新的构成模型解释了特定位置的骨矿物质密度,改善了对任何大腿骨区域的预测.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 整形外科的研究研究.
背景情况:
- 骨由于其不均的结构,在机械性能方面表现出显著的空间变化.
- 当前的构成模型经常在适用于骨不同区域时失败.
- 了解这些变异对于准确的生物力学分析和植入物设计至关重要.
研究的目的:
- 为牛大腿骨透析开发一个强大的构成模型,以考虑区域差异.
- 提高横跨大腿骨任意部分的机械性质的预测精度.
- 解决当前模型在捕捉骨异质性质方面的局限性.
主要方法:
- 牛大腿骨透析被分为下部,中部和上部区域.
- 为了收集实验数据,在各种应变率下进行了单轴拉伸测试.
- 在模型开发中考虑了不同位置的骨矿物质密度变化.
主要成果:
- 通过使用实验数据,成功开发了一种新的构成模型.
- 该模型在任意骨区域的可接受范围内证明了预测准确性.
- 骨矿物质密度的位置变化成功地被整合到模型中.
结论:
- 拟议的构成模型有效地捕捉了牛大腿骨透析的机械行为.
- 这种模型提供了更好的适应性,可以预测大腿骨的任何区域的特性.
- 这些发现有助于更准确的生物机械模拟和骨科应用.
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